Shoe-trimming machine.



S. A. KRBWSON. SHOE TRMMINQ MACHINE. APPLICATION FILED MAR. 12, 190e.

Patented Sept. 7, 1909.

2 SHEETS-SHEET 2.

6.5 weer UNITED s'rATEs PATENT. oEEioE.

skttttnrnaknnwson, or MERCHANTVILLE, NEW JERSEY, AssiGNon, BY Dinner ND. irsNEAslsmNMENTs, rro LoUIslG. FREEMAN, or GINCINNATI; oHIo t. lfb gir. 13"".

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wenn.

Specication of Letters Patent.- 1 i Patented Sept. '7,y 1909'. i

tppncandn iiiedwmrch 12, loos. serial No. 305,645.

1lb Tait .whorrrit may concern: i

Be itilinowngthatl, SAMUEL A. KREwsoN, awcitizenof.theUnited States, and a residentofl\[erchantwille, New Jersey, have invented certainf 1m irovements in ShoeIrim-- ming lvlfaehines o .which the following is a.

speclftioatiom-u f p i Myqintfention relates to machines eniployed.A for,4 the@ pury ose of ,trimming Vor rounding` the soles o shoes, especially that l portion directly underlying the heel, pref paratory'toseei'iring the heeltap to such selesa-.n f f. Theyobjeot of my invention is to provide la sini )leandetiective means for 'doin this woryineoperating Which I am enab ed to utilize' therheel portionof the shoe in which `the lastjis'inclosedasthe gage or guide for a the counte1'.ofthecut. v ".My invention' is fully shovv'n in the acj- `eomlcianying. drawings, 1n which;

mFigureLisya sctional elevation of the soletrnnmingumac ine, made in accordance 'with nay-invention; Fig. 2, is a pla-n view 2'5 of a part of the same; Fig. 3, 1s aview illusi. Stratingvlthe. manner of operating the niachine; Figs. 4 and 5, are diagram views of .nShQeQheeh one showing the solebefore tt'riniming, and;V the other1 showing such sole attentie has been trimmed; Figs. 6 and 7, vare,viejivs of details of my invention, and

lig-.pais aviewillustrating a modification' .The :principal obj ect. of my invention is to ins ne-thatthe'contour of the sole at the heel l v vportion,A which serves afterward as a guide the mannerclearly shown in oint with S`itiiiatedat the proper i aving its y igelatioirf to these' members 'and i i putting?, edge in" line with the axis of rotae .'tiono theferitiI'xvvheel an.d"'guide wheel, is a --lftnifef4stjocut away or trim theexcess por- OiQtionQo thesol'eljf'BothWheels are vertically .Agni lo Iiimitthe ,introduction of the se afbetweentliesanie, and the .shoe is held fgilljieator with the last pressed against itidipav'lieel 2.` The shoe is turned dpeiiator as the cutting opera-.

tion progresses so as to sever the excess por tion of leather from the sole with a contour the same as the heel ortionof the shoe.

The guiding whee 2 is recessed at 2 to facilitate the positioning of the knifeA and saidwheel 2 Vheld in position with respect to' the feed wheel 1. by means of set screws? and 8. This wheel .2 is carried by :1 shaft t) 'ournaled in a sleeve 10V pivotally supported Y aleyer 11 pivoted at 12 and carryingset '6'5 screws 13 and 14, which are employed to adjust. andrest-rict the movement of the same. This lever has a handle 15 whereby said guidingwheel may be raised to ipermit the i entrance of the vvorl: between said guiding and feed Wheels.

vThe feed Wheel is carried by. a shaft 16.

`journaled in bearings 17 and 18, the latter r being guided at the front. of -the machine bj? projections 19, and the former being pivot` 75 -allv mounted at the rearof the' machineso that Va rocking. movement on sai-d pivots may be imparted to said shaft.` Pouer'to drive this shaft is imparted. by means of a `worm 21 carried by a shaft 22, which also carries-80 a pulley 23 by which power may be applied Vfrom abeltf such Worm meshing with a wormfwheell onthe shaft- 16. This shaft;

also 'carries a pinion Q6 near its forward end which meshes with a. pinion 2T 'carried by 85 Athe shaft 9 supporting the guiding Wheel.

The shaft 1C is supported at its forward y end by a spring 30 carried by the lever 11, land having its opposite jend connected to a sleeve 31 through which the shaft 1Gr passes. 90 1-,\fo0t treadle (not shown) may be connected to a avirerod surroundiuv said shaft .16,and by this means said shaft may be lowered againstA the action of the spring J 30 to introduce the ivork between theI wheels. 95 Tension is applied to said spring b v athuinb screw 33. 4

' The Vknife lL is carried b v a platefi adjustable so as to takefupthe wear on the cutting edge vof thesame aud insure that said 10Q edge ,is always in line With the axis of rotation Vofthe guidinf and feed Wheels. The guide wheel is preferably polished. and the operator .in removing the excess of the material holds the shoe against said wheel and l turns it so that the cutting edge-is in line l lwith the center .if'rotationwor ulovenxent ofV the shoe iu the hands of the operator. l"Ihe width of cutlnay be .determined b v the guiding wheel which` may be adptstable back'T 11'0 and forth and held in the adjusted position by .suitable means as shown in Fig. 6; or guide wheels of varied thickness may be employed as shown in Fig. 7. As a further means of providing for such adjustment of the shoe and regulatingthe cut, I mount a shelf 36 at the front of the machine upon which the operator may rest the sole of the shoe. This shelf is hinged at 37 and lies at an angle with respect to the contacting surfaces of the two rolls; being adjustably Vheld in the raised or lowered positions by set screws 38. This structure serves to vary the angle at which the cut is made, and thereby 'j regulates the width of` the material left on the shoe.

In addition to the usefulness of my machine for trimming the soles of shoes, it may be employed as a randing machinel In Fig. S, I have shown a rand cutting knife 39 disposed beneath the guiding wheel 2, and having its cuttin ed e in line with the center of rotation o sai wheel. This figure also shows a section of a shoe in position for the knife to remove the rand from the edge of the sole.

, By preference the operating and adjustable parts of the machine are inclosed by the casin 4:0.

1. The combination, in a sole trimming machine, of a feed Wheel, means for driving the same, a guide wheel for the work havin an edge to engage ,the sole being trimme and a face for engagement by the body of the shoe carrying such sole whereby the sole ma be trimmed to the same contour as said bo y, means for Idrivin said guide wheel from the means for driving the feed Wheel, independently operated means for imparting vertical movement to both of said wheels, and a knife blade having its broad face at ri ht angles to the axis of rotation of said Weels and its cutting edge in line with such axis.

2. The combination, in a sole trimming machine, of a feed wheel, means for driving the same, a guidewvheel having an edge to elpgage the so e being trimmed and a face for engagement by the body of the shoe carryin such sole whereby the sole may be trimme to the same contour as said body, means for driving said wheel from the means for driving the feed wheel, a knife dis osed behind and having its cutting ed e in ine with the axis of rotation of said W eels, independent means for imparting vertical movement to the carriers for both of said wheels to per-` mit insertion of the work, and adjustable means for maintaining said carriers for the wheels in the proper relative ositions.

3. In a sole trlmming mac ne, the combination of a feed wheel, a'shaft ivotallx hung for carr ing the same, mea or driv ing said sha t, a guiding. wh

thereby, a shaft therefor supported by said carrying said wheel, a pivotall mounted su ort for said wheel, means W ereby said gul ing wheel is driven from the feed Wheel shaft, means connecting the support for said guiding wheel to the eed'wheel shaft, and a knife disposed'behind and having its cutting edge inline with the axis of rotation of sai wheels.

4. In a sole trimming machine, the combination of a feed wheel, a shaft pivotally hung .for carrying the same, means for driving said shaft, a guiding wheel, a shaft carrying said Wheel, means whereby said guidin wheel is driven from the feed Wheel shaft, a pivotally mounted support for said guiding wheel shaft, means for adjustably mounting the guiding wheel shaft in said support, means for adjusting said support, a knife coacting with said Wheels, and means connecting the support for said guiding wheel shaft to the feed wheel shaft.

5. The combination, in a sole trimming machine, of a frame, a feed wheel for the Work, a guide wheel for the work, supporting means for said wheels carried by said frame, means for driving said wheels 1n unson, the guide wheel being driven from the feed wheel driving means, means for imparting vertical movement to each of said wheels independently, of each other, and a knife disposed below the ide wheel and havin its cutting edge in line with the center of rotation of said wheels and lyin across the space between the periphera edges of said .wheels to engage the sole moved thereby.

6. The combination, in a sole trimmin machine, of a frame, a feed wheel carrie thereby, a shaft therefor pivotally su ported in said framemeans for drivin sai shaft means for impartin indepen ent 'verticai movement to the en of said shaft, a guide wheel, a shaft carr in the Same, earin to d rive said guide w ee from the eed W eel shaft, adjustable means for supporting said guide Wheel shaft whereby the guide wheel may be moved vertically away from the feed wheel, resilient means connectin the support for said guide wheel to the eed wheel shaft anda knife disposed behind said whees and having its cutting edge in line u with the axis of rotation of the same.

7The combination, in a sole trimmln machine, of a frame, a feed wheel carrie frame, means for driving sai shaftz means for supporting said shaft in such position as to per-mit` independent vertical movement of the same, a guide wheel, a shaftcarrying the same, means whereby said guide wheel is ,driven from the feed wheelshaft, a lever for sup 'away from the feed wheel, means carried orting ,said sai guidewhee maybe moved vertically ide Wheel shaft whereby` by i. :a said lever for limiting its movement, means 18;)

- machine, of a frame,

4 edge in line with the axis of rotation of the same. y

8. The combination, 1n n sole trnninmg a feed wheel carried "thereby, :i shaft therefor supported-bV said frame, means for driving said shaft, means for supporting said shaft iny such position :1s to permit independent vertical movement of Che same, a guide Wheel7 a shaft carrying the saine, means whereby said gnide-whee1 is driven from 'the feed wheel shaft, a lever pivotaily mounted in said frame for supporting said guide Wheel shaft whereby said guide wheel may be moved verticaliyraw from the feed wheel, means carried by said lever for limitin'v its movement, means 'also carried thereby or adjusting the posltlon ofv the guide wheel shaft, means connectinghe support for said wheel shaft, and a knife disposed, behind said wheels and having its cutting edge in 1line with the axis of rotation of thesame.

In testimony whereof, I have signed my naine to this Specification. in the presence of two subscribing witnesses.

` SAMUEL A. I{RE\VSON. Witnesses LEON CnAMnenLAiN, Josniu loLLNn.

guide wheel to the feedL 

